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STMicroelectronics STM8S207K8T6CTR
- Part No.:
- STM8S207K8T6CTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
STM8S207K8T6CTR.pdf
- Description:
- IC MCU 8BIT 64KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,821
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Product details
Overview
STM8S207K8T6CTR from STMicroelectronics is an 8-bit high-performance microcontroller featuring a Harvard-architecture STM8 core, 24 MHz max CPU frequency, 64 KB Flash, 2 KB data EEPROM, 10-bit ADC with 16 channels, dual UARTs (one CAN-capable), SPI, I²C, and advanced timer peripherals including TIM1 with dead-time insertion. It targets automotive body electronics, industrial control panels, and smart sensor nodes requiring robust CAN communication and low-power operation.
For engineers reviewing the STM8S207K8T6CTR datasheet, STM8S207K8T6CTR pinout, STM8S207K8T6CTR application, or STM8S207K8T6CTR equivalent, key selection criteria include its integrated beCAN 2.0B controller, SWIM single-wire debug interface, 68 I/O capability in LQFP80, 2.95–5.5 V wide supply range, and support for active-halt/low-power modes with sub-μA wakeup current.
Technical Context
The STM8S207K8T6CTR implements a 3-stage pipelined STM8 core with extended instruction set and nested interrupt controller supporting 32 interrupts and up to 37 external IRQ lines. Its clock system integrates trimmable 16 MHz RC, 128 kHz low-power RC, and crystal oscillator with clock security monitoring.
Peripheral integration includes a dedicated beCAN 2.0B controller with 1 Mbit/s capability, two UARTs (UART1 supports LIN 2.1 master/slave and automatic resync), SPI up to 10 Mbit/s, I²C up to 400 kbit/s, and a 16-bit advanced control timer (TIM1) with 3 complementary outputs and programmable dead-time insertion for motor control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | STM8 8-bit Harvard core with 3-stage pipeline; enables deterministic 20 MIPS @ 24 MHz without wait states below 16 MHz. |
| Flash Memory | 64 KB program Flash with 20-year data retention at 55 °C after 10k write cycles; supports in-application programming (IAP). |
| Data EEPROM | 2 KB true data EEPROM with 300k endurance cycles; retains calibration data or configuration across power cycles. |
| ADC Resolution | 10-bit SAR ADC with up to 16 input channels and internal reference; delivers ±1 LSB INL/DNL for precision sensor interfacing. |
| beCAN Interface | High-speed 1 Mbit/s active beCAN 2.0B controller with 16 message objects and flexible filtering; enables robust automotive network node implementation. |
| Supply Voltage | 2.95–5.5 V operating range; allows direct connection to 3.3 V or 5 V systems without level-shifting. |
| Low-Power Modes | Wait, active-halt, and halt modes with individual peripheral clock gating; active-halt draws 1.2 μA typical at 3.3 V. |
Pinout & Package
LQFP80 package (14 × 14 mm, 0.5 mm pitch) with 68 user-configurable I/Os, including 18 high-sink outputs capable of 20 mA sink per pin - suitable for direct LED driving or relay coil control without external buffers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual VDD/VSS pairs ensure stable core and I/O rail decoupling; mandatory 100 nF ceramic capacitor per VDD pin. |
| NRST | Active-low reset input | Internal pull-up + Schmitt trigger; accepts 1.2–5.5 V logic; supports external reset button or supervisor IC. |
| SWIM | Single-wire interface module | Debug and programming interface using one pin; enables full flash read/write and real-time register inspection. |
| PA0–PA7, PB0–PB7, etc. | General-purpose I/O ports | Configurable as push-pull, open-drain, or analog inputs; 18 pins support 20 mA sink for direct actuator drive. |
| PD4/PD5 | CAN_TX / CAN_RX | Dedicated differential CAN transceiver interface pins; require external CAN PHY (e.g., TJA1042) for bus connection. |
| PC3/PC4 | UART1_TX / UART1_RX | Full-duplex asynchronous serial interface; UART1 supports LIN 2.1 auto-resynchronization for automotive diagnostics. |
Key Features
| Feature | Design Value |
|---|---|
| beCAN 2.0B Controller | Integrated 1 Mbit/s CAN node with 16 message objects, hardware filtering, and time-triggered communication support. |
| SWIM Debug Interface | Single-pin, non-intrusive debugging and programming; no JTAG header required - reduces PCB footprint and BOM cost. |
| Advanced Control Timer (TIM1) | 16-bit timer with 4 CAPCOM channels, 3 complementary outputs, and programmable dead-time insertion for 3-phase motor gate drive. |
| True Data EEPROM | 2 KB on-chip EEPROM with 300k write cycles; eliminates need for external serial EEPROM in firmware update or calibration storage. |
| Low-Power Operation | Halt mode consumes 0.35 μA typical; wakeup via external interrupt or auto-wakeup timer enables battery-powered sensor node designs. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in entry-level vehicles. IC Role / Device Role / Timing Role: Primary MCU managing CAN bus communication with gateway ECU, executing LIN slave functions for local actuators, and sampling analog sensors (e.g., temperature, position). Use Value: Integrated beCAN and LIN support reduce external transceiver count; 64 KB Flash accommodates multi-feature firmware with OTA update capability. |
Use Scenario: Modular digital I/O expansion unit for DIN-rail mounted PLCs handling discrete sensor inputs and relay outputs. IC Role / Device Role / Timing Role: Local intelligence node performing debounce, pulse counting, and isolated output timing; communicates status via UART to main controller. Use Value: 18 high-sink I/Os drive 24 V relays directly; 10-bit ADC monitors supply voltage and temperature for health reporting. |
| Smart HVAC Sensor Node | Medical Infusion Pump Controller |
Use Scenario: Battery-powered wireless sensor node measuring ambient temperature, humidity, and CO₂ in commercial buildings. IC Role / Device Role / Timing Role: System-on-chip managing sensor acquisition, low-power sleep scheduling, and UART-to-Bluetooth bridge firmware. Use Value: Active-halt mode draws <2 μA; SWIM enables field firmware updates without removing PCB; EEPROM stores calibration offsets. |
Use Scenario: Safety-critical infusion pump subsystem controlling stepper motor timing, pressure sensing, and alarm generation. IC Role / Device Role / Timing Role: Dedicated safety monitor co-processor verifying main MCU commands and independently validating motor step timing via TIM1 PWM capture. Use Value: TIM1's dead-time insertion prevents shoot-through in H-bridge drivers; independent watchdog and clock monitor meet IEC 62304 Class C requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM8S208R8T6 | Same package and pinout; adds 2nd CAN controller and 128 KB Flash - no change in peripheral count or clock specs. | Required where dual-CAN networks (e.g., powertrain + body) are needed; otherwise over-spec'd for single-CAN use cases. | Select only if dual-CAN or >64 KB code space is confirmed in design; increases cost without benefit for basic CAN nodes. |
| STM32F042F6P6 | 32-bit ARM Cortex-M0 core, 48 MHz, 32 KB Flash, USB 2.0, no native CAN - requires external CAN transceiver and software stack. | Suitable for USB-connected devices or where higher compute throughput justifies added software complexity and BOM cost. | Prefer when USB device functionality or future scalability to RTOS-based firmware is required; not drop-in compatible. |
Compared with STM8S208R8T6, the STM8S207K8T6CTR offers optimal cost/performance for single-CAN applications with sufficient Flash; versus STM32F042F6P6, it delivers lower system-level BOM cost and simpler certification path for CAN-based safety functions.
Availability
STM8S207K8T6CTR is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC modules, and battery-powered sensor nodes requiring stable component supply and long-term production continuity.
Supply support for STM8S207K8T6CTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive-grade components since 1987.
The STM8S series targets cost-sensitive, high-reliability embedded applications in automotive, industrial, and appliance markets, emphasizing robustness, low-power operation, and ease of certification for functional safety standards.
FAQ
Does STM8S207K8T6CTR support in-system programming via SWIM?
Yes. The Single Wire Interface Module (SWIM) enables full in-system programming and debugging using only one pin (SWIM), with no need for additional hardware debug probes. It supports flash erase/write, memory read, and real-time register access at any voltage within the 2.95–5.5 V operating range, and is compatible with ST-LINK/V2 and third-party SWIM programmers.
What is the maximum allowed clock frequency for reliable operation at 3.3 V?
At 3.3 V supply, the STM8S207K8T6CTR supports up to 16 MHz CPU frequency with zero wait states, as specified in the absolute maximum ratings and electrical characteristics tables. Operating above 16 MHz at 3.3 V violates the fCPUmax vs. VDD curve and may cause timing violations or data corruption in Flash or peripheral registers.
Can the built-in 10-bit ADC measure signals beyond the VDD reference?
No. The ADC uses VDDA (analog supply) as its reference voltage and accepts input signals only within 0 V to VDDA. For measurements exceeding VDDA, external signal conditioning (e.g., resistor divider or op-amp scaling) is required. The datasheet specifies RAIN < 10 kΩ for optimal accuracy, and VDDA must be decoupled with ≥100 nF ceramic capacitor.
Is the 96-bit unique ID accessible during runtime for firmware licensing?
Yes. The 96-bit unique ID is stored in read-only memory locations (addresses 0x4865–0x486A) and can be accessed at any time during normal operation without affecting system performance. It is factory-programmed and guaranteed unique per die, making it suitable for secure firmware activation, device binding, or anti-cloning mechanisms in production firmware.
STM8S207K8T6CTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 32-LQFP
- Series:
- STM8S
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- STM8
- Core Size:
- 8-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 25
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 6K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.95V ~ 5.5V
- Data Converters:
- A/D 7x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM8S207K8T6CTR FAQ
1.How can I place an order for STM8S207K8T6CTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM8S207K8T6CTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM8S207K8T6CTR reliable?
The price and inventory of STM8S207K8T6CTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM8S207K8T6CTR is usually 5 days.
3.What payment methods are accepted for STM8S207K8T6CTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM8S207K8T6CTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM8S207K8T6CTR?
STM8S207K8T6CTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM8S207K8T6CTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM8S207K8T6CTR?
For technical support, including STM8S207K8T6CTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM8S207K8T6CTR requirements.
6.How does Aetrix verify that STM8S207K8T6CTR is sourced from the original manufacturer or authorized distributors?
All STM8S207K8T6CTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM8S207K8T6CTR meets industry standards.
7.What is the process for return or replacement of STM8S207K8T6CTR?
All STM8S207K8T6CTR units undergo pre-shipment inspection (PSI). If there is an issue with STM8S207K8T6CTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM8S207K8T6CTR part is unused and in its original packaging.
Return procedure for STM8S207K8T6CTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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